TC9462F_01 Datasheet, PDF (4/17 Pages) Toshiba Semiconductor – Digital Servo Single Chip Processor

Pin No.
29
Symbol
TMAXS
30
TMAX
I/O
Functional Description
O
TMAX detection result output terminal. Selected by
command bit (TMPS).
TMAX detection result output terminal. Selected by
command bit (TMPS).
TMAX Detection
TMAX Output
O
Longer than fixed freq.
“P2V_REF”
Shorter than fixed freq.
“V_SS”
Within the fixed freq.
“HiZ”
TC9462F
Remarks
3-state output.
(P2V_REF, PV_REF, V_SS)
3-state output.
(P2V_REF, HiZ, V_SS)
31
LPFN
I LPF amplifier inverting input terminal for PLL.
Analog input.
32
LPFO
O LPF amplifier output terminal for PLL.
Analog output.
33
PV_REF
¾ PLL reference voltage supply terminal.
34
VCOREF
I
VCO center frequency reference level terminal.
Normally, keep at “PV_REF” level.
35
VCOF
O VCO filter terminal.
¾
¾
Analog output.
36
AV_SS
¾ Analog GND terminal.
37
SLCO
O Data slice level output terminal.
¾
Analog output.
38
RFI
I RF signal input terminal.
39
AV_DD
¾ Analog power supply voltage terminal.
40
RFCT
I RFRP signal center level input terminal.
41
RFZI
I RFRP zero cross input terminal.
Analog input.
(Z_in: selected by command)
¾
Analog input.
(Z_in: 50 kW)
Analog input.
42
RFRP
I RF ripple signal input terminal.
Analog input.
43
FEI
I Focus error signal input terminal.
Analog input.
44
SBAD
I Sub-beam adder signal input terminal.
Analog input.
45
TSIN
I Test input terminal. Normally, keep at “V_REF” level.
46
TEI
I
Tracking error signal input terminal.
Take in at tracking servo on.
Analog input.
Analog input.
47
TEZI
I Tracking error zero cross input terminal.
48
FOO
O Focus servo equalizer output terminal.
49
TRO
O Tracking servo equalizer output terminal.
Analog input.
(Z_in: 10 kW)
Analog output.
(2V_REF~AV_SS)
50
V_REF
¾ Analog reference voltage supply terminal.
¾
51
RFGC
O
RF amplitude adjustment control signal output terminal.
3-state PWM signal output. (PWM carrier = 88.2 kHz)
52
TEBC
O
Tracking balance control signal output terminal.
3-state PWM signal output. (PWM carrier = 88.2 kHz)
53
FMO
O
Feed equalizer output terminal.
3-state PWM signal output. (PWM carrier = 88.2 kHz)
3-state output.
(2V_REF, V_REF, V_SS)
54
FVO
O
Speed error signal or feed search equalizer output terminal.
3-state PWM signal output. (PWM carrier = 88.2 kHz)
55
DMO
O
Disc equalizer output terminal.
(PWM carrier = 88.2 kHz for DSP, Synchronize to PXO)
56
2V_REF
¾ Analog double reference voltage supply terminal.
¾
APC circuit ON/OFF indication signal output terminal.
57
SEL
O At the laser on time, “HiZ” level at UHS = L and “H” level at
¾
UHS = H.
4
2001-11-05